Live Chat I-55 Community Nearby Traffic Number 230 Dam (Water dam) 2024-05-09 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Number 230 Dam (Water Dam) Herculaneum, MO 2.50 Crystal City, MO 6.23 Barnhart, MO 6.63 Interstate highway exits close to Number 230 Dam (Water Dam) Exit 180, i55 1.02 Exit 178, i55 2.71 Exit 175, i55 7.30 Interstate highways close to Number 230 Dam (Water Dam) i55 map 1.02 i270mo map 25.72 i255il map 25.76 State roads close to Number 230 Dam (Water Dam) US 67 MO map 1.63 US 61 MO map 4.45 MO 21 map 10.76